Roller for roller cotton-gins.



W. H. HARRISS.

ROLLER FOR ROLLER COTTON GINS.

APPLICATION FILED 00m. 22, 1910.

1 ,002,9 1 3, Patented Sept. 12, 1911.

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g 16 ATTORNEY$ W. H. HARRISS. ROLLER FOR ROLLER COTTON GINS.

APPLICATION FILED 00122-1910.

Patented Sept. 12, 1911.

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rmrrnn STATES PATENT OFFICE.

WILLIAM H. HARRISS, OF PAW'IUCKET, RHODE ISLAND, ASSIGNOR TO EMPIRE DUPLEX GIN COMPANY, OF NEW YORK, N. Y., A CORPORATION OF ARIZONA TERRITORY.

ROLL-ER FOR ROLLER COTTON-GINS.

Specification of Letters Patent.

Patented Sept. 12, 1911.

Application filed October 22, 1910. Serial No. 588,433.

To all whom it may concern:

Be it known that I, WILLIAM H. HARRISS, a citizen of the United States of America, and a resident of Pawtucket, county of Providence, and State of Rhode Island, have invented certain new and useful Improvements in Rollers for Roller Cotton-Gins, of which the following is a specification, reference being had to the accompanying dra'w ings, forming a part thereof.

My invention relates to ginning rollers for roller cotton gins and consists in the combination with a suitable core or base, of a tubular element therefor containing the friction surface of the roller, the said tubular element comprising a plurality of convolutions of thin sheet material, provided with radial recesses, and radially projecting plugs fitted therein whose outer faces constitute the friction surface for the roller, the convolutions being arranged to be successively removed as the faces of the plugs become worn away whereby fresh portions of the plugs may be constantly presented for use and wear.

In carrying out my invention I employ many novel details of construction and combinations of parts, such as will be fully pointed out hereinafter, and in order that my invention may be thoroughly understood, I will now proceed to describe an embodiment thereof having reference to the accompanying drawings illustrating the same, and will then point out the novel fea tures in claims.

In the drawings: Figure 1 is a view partly in end elevation and partly in transverse section of a ginning roller constructed in accordance with my invention. Fig. 2 is a view in side elevation thereof, parts being successively broken away in order to show other parts beneath them. Fig. 8 is an enlarged detail view in transverse section through a portion of the periphery of the roller. Fig. 4 is an end view of a modified form of the roller core. Fig. 5 is a view in part side elevation and part central longitudinal section of the form of roller core shown in Fig. 4:.

In general the roller consists of a substantially cylindrical core and a tubular element fitted thereto in which is contained the friction or operating surface of the roller.

When the tubular element is made as a part removable and replaceable, as a whole, with respect to the core, the core is conveniently constructed in such a manner that it may be contracted and expanded. To this end in the form illustrated in Figs. 1 and 2 I have shown the core as comprising a metallic shell 10 longitudinally divided at one point as at 11, and end heads for supporting the same. The end heads may conveniently take the form of hubs 12 provided with radial arms 18111 115. The arm 13 is rigidly secured at its extremity to the inner surface of the shell 10 at a point diametri' cally opposite to the line of division 11. The arms 14-14: are provided at their eX- tremities with pins 16 which enter slots 17 in the shell at points at right angles to the point at which the arm 13 is secured to the shell, while the remaining arm 15 is provided with two similar pins 18 at its extremity, which enter slots 19 in the said shell at points adjacent the line of division 11. The arm 15 also carries a turn buckle 20 having right and left-handed screw-threaded stems which engage with correspondingly screw-threaded nuts 2121 secured to the shell in proximity to its line of division 11. By rotating the turn buckles in one direction or the other the shell, as a whole, may be contracted or expanded. When contracted the outer tubular element may be readily removed therefrom and a new one mounted in position, while upon expansion the shell will be moved into such frictional engagement with the tubular element as to retain the same securely in position.

In Figs. 1- and 5 I have shown a modified form of the expansible shell in which the shell is composed of two parts 2223 fitted together but capable of movement radially with respect to each other in one direction. For the purpose of bringing about this radial movement I have shown the shell as provided with wedges 24: located between the two elements 22""23 and adapted to engage inclined surfaces 25 with which the core portion 22 is provided. These wedges are provided with adjusting screws 26 by which they may be moved inward or outward, and it will be readily seen that in their movement inward they will cause the two shell sections -to move outward with respect to each other and thus to cause an expansion thereof as a whole, while in their outward movement they will permit the core sections to move inward with respect to each other whereby to permit the core to contract as a whole. As a matter of construction the core section 23 is conveniently provided with a central extension 27 which enters a corresponding recess 28 in the core section 22, the extension 27 forming a convenient part to which the trunnions 29 may be secured. Dowel pins 30 may also be employed between the two sect-ions so as to prevent relative longitudinal movement thereof.

The exterior tubular element is composed in whole or in part of a flexible material, such as paper, wound or otherwise arranged in a series of substantially concentric convolutions 31, and provided with recesses or perforations therein for receiving cylindrical radially disposed plugs 32. For convenience' in manufacture this strip may be wound in the form of a continuous spiral and a strip of adhesive material may be disposed betwe'eneach pair of adjacent convolutions as at 38 so as to join them together. This strip of adhesive material is preferably located at different points c1rcumferentially between the various convolutions so that the slight additional thickness produced thereby will be distributed generally around the tubular element. The plugs 32 are arranged, normally to project slightly beyond theouter layer of the flexible strip, whereby their outer faces will constitute the friction surfaces of the ginning roller, the space between them taking the places of the shallow grooves or indentat-ions commonly employed in rollers of this description. As will be well understood these plugs will gradually wear'away in use,

and in order that fresh portions of these plugs may be presented as the extremities wear away, I arrange to remove one of the successive convolutions and preferably in proximity to the strips of adhesive material 88, longitudinally disposed slender wires, cords, tapes, or the like 34, the ends of which are allowed to project beyond the end of the roller as is shown in Fig. 2. By grasping the end of the proper wire, cord, or tape, and drawing it longitudinally across the face of the roller I am enabled to readily sever the outer convolution, and by tearing it away at its opposite end it maybe fully removed By this means a new portion of the plugs 'is exposed corresponding to the thickness of the removed convolution.

The foregoing operation may be carried out successively as the plugs wear away, until the plugs are practically all used up.

.Thereafter the remaining portion of the tubular element may be removed and a new element substituted in its place as and in the manner set forth above.

The plugs employed are preferably of cork, but I make no claim in the present application to the employment of the plugs per 56, nor to the employment of cork as a material for the friction surface of the roller, these features being disclosed and claimed in a co-pending application Serial No. 588,432 filed upon even date herewith.

hat I claim is:

1; In a ginning roller for roller cotton gins, the combination with a substantially cylindrical core, of a tubular element fitted thereto comprising a plurality of convolutions, the said convolutions containing radial recesses and having radially extending plugs fitted thereto, the said convolutions being arranged to be successively removed whereby to successively expose fresh portions of the said plugs.

2. In a ginning roller for roller cotton gins, the combination with a substantially cylindrical expansible core, of a tubular element removably fitted thereto comprising a plurality'of convolutions, the said convolutions containing radial recesses and having radially extending plugs fitted thereto, the said convolutions being arranged to be successively removed whereby to successively expose fresh portions of the said plugs.

3. In a ginning roller for roller cotton gins, the combination with a substantially cylindrical core, of a tubular element fitted thereto comprising a flexible strip wound spirally to form a plurality of substantially concentric convolutions, the said convolutions containing radial recesses and havin radlally extending plugs fitted thereto, the

- said convolutions being arranged to be successively removed whereby to successively expose fresh portions of the said plug.

4:. In a ginning roller for roller cotton gins, the combination with a substantially cylindrical core, of a tubular element fitted thereto comprising a flexible strip wound spirally to form a plurality of substantially concentric convolutions, the adjacent eonvolutions being secured together by adhesive material, and the said convolutions as a whole containing radial recesses and having radially extending plugs fitted thereto.

5. In a ginning roller for roller cotton gins, the combination with a substantially cylindrical core, of a tubular element fitted thereto comprising a flexible strip wound spirally to form a plurality of substantially concentric convolutions, the adjacent convolutions being secured together by adhesive material and containing between them a severing strip, the convolutions as a whole ally extending plugs fitted thereto.

6. In a ginning roller for roller cotton the said convolutions as a Whole containing gins, the combination With a substantially radial recess-es and having radially eXtendcylindrical core of a tubular element fitted ing plugs fitted thereto.

thereto comprising a plurality of substan- WILLIAM H. HARRISS. tially concentric convolutions, the adjacent Witnesses:

convolutions being provided With longi- D. HOWARD HAYWOOD,

tudinal severing strips between them, and F. B. GRAVES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

